On Wed, Jul 15, 2015 at 12:39:36AM -0700, Ming Lin wrote: > On Wed, Jul 15, 2015 at 12:15 AM, Ming Lin <mlin@xxxxxxxxxx> wrote: > > On Tue, 2015-07-14 at 23:58 -0700, Kent Overstreet wrote: > >> Can you strace it? > > > > Strange. Now error message changed. > > I mean sometimes it showed: > > mount: /dev/sdt already mounted or /mnt/ busy I have no idea what's going on, it works for me - is there anything unusual about your setup? what kind of block device is /dev/sdt? is there any chance there's another process that has it open? maybe try rebooting? -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html